package com.sky.service.impl;

import com.alibaba.fastjson.JSONObject;
import com.sky.constant.MessageConstant;
import com.sky.dto.UserLoginDTO;
import com.sky.entity.User;
import com.sky.exception.LoginFailedException;
import com.sky.mapper.UserMapper;
import com.sky.properties.WeChatProperties;
import com.sky.service.UserService;
import com.sky.utils.HttpClientUtil;
import lombok.extern.slf4j.Slf4j;
import org.aspectj.bridge.Message;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.util.HashMap;
import java.util.Map;

@Service
@Slf4j
public class UserServiceImpl implements UserService {
    // 微信服务接口地址
    private static final String WX_LOGIN = "https://api.weixin.qq.com/sns/jscode2session";
    @Autowired
    private WeChatProperties weChatProperties;
    @Autowired
    private UserMapper userMapper;

    @Override
    public User wxlogin(UserLoginDTO userLoginDTO) {
        String openid = getOpenid(userLoginDTO.getCode());

        // 判断openid是否 为空 如果为空则提示微信登录失败,抛出业务异常
        if (openid == null) {
            throw new LoginFailedException(MessageConstant.LOGIN_FAILED);
        }
        // 判断当前的微信用户是不是新用户
        User user = userMapper.getByOpenid(openid);
        // 如果是，则自动完成注册
        if (user == null) {
            user = User.builder()
                    .openid(openid)
                    .createTime(LocalDateTime.now())
                    .build();
            userMapper.insert(user);
        }
        // 返回这个用户对象
        return user;
    }
        /*
         * // 调用微信接口服务，获得当前微信用户的openid */




        private String getOpenid(String code) {
            Map<String, String> map = new HashMap<>();
            map.put("appid", weChatProperties.getAppid());
            map.put("secret", weChatProperties.getSecret());
            map.put("js_code", code);
            map.put("grant_type", "authorization_code");
            String json = HttpClientUtil.doGet(WX_LOGIN, map);
            JSONObject jsonObject = JSONObject.parseObject(json);
            String openid = jsonObject.getString("openid");
            return openid;

        }


    }

